RE: To flap or not to Flap. That is the question
I built same sized plane a few years ago (only just sold it) but went for flaps. Initially I had them taped up but I should got bored with flying and so connected them for a play. I figured that it would be easier to build them into the plane during construction rather than making a mess of the wing later on. From my experience found that flaps not required for this particular model but also that they are alot of fun when theres abit of wind.